Airtac LSH Linear Guide Rail LSH25BK-F2N-P-E-M6
The AirTAC Airtac LSH Linear Guide Rail LSH25BK-F2N-P-E-M6 is a standard-type profile linear guide on a 23 mm wide rail. Four rows of balls contact X-shaped raceways at a 45° angle, so the guide carries load equally in all four directions and absorbs small mounting errors inside the carriage instead of binding.
- SeriesLSH
- Supplied asCarriage / block only
- SizeLSH25
- Rail width23 mm
- Carriage lengthStandard carriage
- AccuracyP — precision grade
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac LSH Linear Guide Rail LSH25BK-F2N-P-E-M6
The LSH25BK-F2N-P-E-M6 is the carriage half of an AirTAC LSH25 linear guide: one F2 flange block that bolts from below, standard length, precision accuracy, M6 nipple, pairing code E. It ships on its own - no rail, no screws, no other hardware. Four rows of balls at a 45 degree contact angle in crossed X-arc raceways carry load equally in every direction and let the block absorb slight misalignment of the mounting face rather than resist it. Remember the rail width is 23 mm at size 25, two millimetres less than the code suggests.
Catalogue ratings for this standard carriage: 26.9 kN basic dynamic, 39.4 kN basic static, moments 0.44 MR / 0.38 MP / 0.38 My in kN.m. For context, stepping from LSH20 to LSH25 lifts MR from 0.27 to 0.44 kN.m, about 63 percent, from a single part - which is why a size up often beats adding a second carriage when tipping moment governs. Preload and running accuracy are decided by the set you build with pair code E rail.
Airtac LSH Linear Guide Rail LSH25BK-F2N-P-E-M6 Technical Specifications
| Model | Airtac LSH Linear Guide Rail LSH25BK-F2N-P-E-M6 |
|---|---|
| Series | LSH Series Linear Guide |
| Supplied as | Carriage / block only |
| Construction | Recirculating ball, four ball rows on X-shaped raceways at a 45° contact angle, self-aligning |
| Size code | LSH25 |
| Rail width | 23 mm (the size code is not the rail width above size 20) |
| Carriage style | Flange, bottom mounting |
| Carriage length | Standard carriage |
| Basic dynamic load rating C | 26.9 kN per carriage |
|---|---|
| Basic static load rating C0 | 39.4 kN per carriage |
| Allowable static moment | MR 0.44 / MP 0.38 / My 0.38 kN·m |
| Accuracy grade | P — precision grade |
| Mounting screws | M6 — 1370 N·cm into steel, 921 cast iron, 686 aluminium |
| Lubrication | Pre-filled with Mobilux EP2; re-grease every 100 km of travel or every 3–6 months |
| Interchangeability | LSH carriages fit LSH rails of the same model, matched by the pairing code |
Specifications follow the official AirTAC LSH catalogue. The catalogue page does not state the carriage or rail base material. Sizes 35 and 45 exist in the catalogue but are not stocked here; they are available to order. This item is a carriage only. Order a complete set if you also need a rail.
Model Code: Airtac LSH Linear Guide Rail LSH25BK-F2N-P-E-M6
| LSH | LSH Series Linear Guide. |
|---|---|
| 25 | Size code — note the rail is 23 mm wide, not 25 mm. |
| BK | Carriage / block only — no rail supplied. |
| H / F1 / F2 / F3 | Carriage style: square, or flange mounted from the top, bottom, or both. |
| N | Standard carriage. |
| P | P — precision grade. |
| Pairing code | Rails and carriages must share a pairing code. Take it from the original part when replacing. |
| -M4 / -M6 / -A01… | Grease nipple or tube-fitting type. Restricted by size: size 15 the M4 family, 20–35 the M6 family, 45 the PT1/8 family. |
What Is In The Box
| This order | Carriage / block only |
|---|---|
| Rail | No — not supplied with this item |
| Carriage | Yes, one |
This is a carriage on its own. NO RAIL IS INCLUDED. If you are not sure which form you need, send us the machine or the original part number and we will confirm it before you order.
Where the Airtac LSH Linear Guide Rail LSH25BK-F2N-P-E-M6 Is Used
Packaging line transfer unit
A pusher carriage indexing cartons across a packaging conveyor gets equal load capacity in all four directions from this pair code E block on its existing LSH25 rail.
Assembly press fixture
Bottom-flange mounting hides the fixing screws below an assembly-press slide plate, keeping the working face clear while the block carries 39.4 kN static.
High-cycle loading arm
Greased with Mobilux EP2 at 3.6 cm3 first charge and topped up every 100 km of travel, this standard block suits a parts-loading arm cycling a 300 mm stroke around the clock.
Is the Airtac LSH Linear Guide Rail LSH25BK-F2N-P-E-M6 the Right Guide?
Size both ways before you commit. Downwards: LRM serves light loads in tight spaces, but AirTAC does not publish its load ratings, so ask us to confirm them. Upwards: if the 0.44 kN.m MR of this size 25 carriage is close to your limit, LSH30 standard raises MR to 0.66 kN.m in one part. Across: for short travel where crossed-roller rigidity matters more than long recirculating run, LGC is the alternate family. Because this SKU is carriage only, the checklist starts with the form - no rail included - then size by load AND moment, F2 style, standard length, accuracy P, preload grade of the eventual set, M6 fitting, and above all the pairing code: rails and carriages must share it, and on a part-only order it is the one thing you cannot guess.
Quick checklist
- ✓ Complete set, carriage only, or rail only?
- ✓ Worst-case moment, not just straight load
- ✓ Travel length and mounting space
- ✓ Accuracy grade and preload
- ✓ Mounting surface ground or finish-milled
- ✓ Pairing code, if replacing a part
Installation & Maintenance Notes
- check Mounting surface must be ground or finish-milled.
- check Torque the rail screws per the recommended figures, in sequence.
- check Keep the mounting corner radius inside the stated R maximum.
- check Do not angle the carriage onto the rail; balls can drop out.
- check Drive the supplied bolt caps into the mounting holes.
- check Re-grease every 100 km of travel or every 3–6 months.
- check Installation by qualified personnel per AirTAC docs.
Airtac LSH Linear Guide Rail LSH25BK-F2N-P-E-M6 FAQ
Dynamic C 26.9 kN; static C0 39.4 kN; moments MR 0.44, MP 0.38, My 0.38 kN.m - all per carriage, standard length. Precision grade parallelism band: 3 to 21 um across the rail length range. Rail mounting: M6 screws, 1370 N.cm on steel, 921 on cast iron, 686 on aluminium. Grease per block: 3.6 cm3 initial, 1.1 cm3 top-up, interval 100 km of travel or 3 to 6 months.
The box holds a single F2 flange block, nothing else; the LSH25 rail (23 mm wide) is a separate SKU. Every LSH rail and carriage carries a pairing letter - E on this block - and the two must match for the ball rows to run correctly. Take the letter from the end of your old rail or carriage when ordering a replacement; if you only know the full set model, give us the code and we will confirm the pairing.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac LSH Linear Guide Rail LSH25BK-F2N-P-E-M6
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.